Setting Active Brake Assist
Requirements:
The vehicle is switched on.
Multimedia system:
The following settings are available:
Early
Medium
Late
Off
It is recommended that Active Brake Assist is always left activated.
Select a setting.
The last active setting is selected automatically every time the vehicle is started.
Exception: if the last setting was Off, the Medium setting will be automatically activated the next time the vehicle is started.
Deactivating Active Brake Assist
It is recommended that Active Brake Assist is always left activated.
Select Off.
The distance warning function and autonomous braking function are deactivated.
When the vehicle is next started, the Medium setting is automatically activated.
If Active Brake Assist is deactivated, the 
symbol appears in the status bar of the instrument cluster.